kidnapping vs pickpocket

kidnapping

noun
  • The crime of taking a person against their will, sometimes for ransom. 

pickpocket

noun
  • One who steals from the pocket of a passerby, usually by sleight of hand. 

verb
  • To pick pockets; to steal. 

How often have the words kidnapping and pickpocket occurred in a corpus of books? (source: Google Ngram Viewer )